I don't know as I haven't read it. But typically in a love novel set in Paris, there could be a protagonist who is in Paris for some reason, like work or study, and then they meet someone special, who could be another main character.
Since I haven't read it, I'm not sure. But likely there is the sister who is the queen. There may also be her family members, like siblings or parents, who could play important roles. And there might be courtiers, advisers, or love interests.
Typically, there is a main character who is the 'gamer' in the story. This character often has a distinct personality, usually being quite intelligent and adaptable as they need to navigate the game - like world. There may also be side characters like friends or allies who help the main character on their quests.
The main character is the gamer himself. He's an ordinary guy at first who then discovers his new 'gamer' abilities. There are also other characters like his friends who get involved in his adventures. Some of them might have their own special abilities or roles in this game - like world.
Well, in 'Who Are You' manhwa, the main characters often include a central figure facing identity crises and the people who play significant roles in helping them uncover the truth. Sometimes, there could also be antagonists who add to the complexity of the story.
One way could be to have the child adopted by a trusted family in a remote area. Another option is to give the child a magical charm that makes them invisible to certain people. You could also have the child live in a hidden village protected by powerful magic.